A Pap test checks for cancer of the
A. ovary.
B. oviduct.
C. vagina.
D. uterus.
E. cervix.
Answer: E
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The neural tube will develop into the ________
a. brain and spinal cord b. vertebral column c. somites d. legs
_________ glass can be distinguished from other glass by heating the glass fragments.
A. Tempered B. Safety C. Green D. Ballistic
This chapter discussed speciation by genetic divergence following geographic isolation, which is expected to lead to reduced gene flow, a process known as allopatric speciation
A more controversial form of speciation is the genetic divergence of populations without physical isolation, a process known as sympatric speciation. Can you envision a mechanism or process that would permit two coexisting populations of the same species to begin to diverge without being isolated from one another?
A plant is treated with a chemical that blocks the flow of electrons between photosystem II and photosystem I, such that protons are not transported from the stroma into the thylakoid compartment. What is the effect of this chemical on photosynthesis?
A. a decreased proton gradient will cause less ATP to be produced from the light reactions B. an increased proton gradient will provide the energy needed to produce ATP from the light reactions C. the increased number of protons will be directly used in the thylakoid to produce glucose D. the increased proton gradient will be used to make NADPH for the Calvin cycle